Control method and control system of converter

The embodiment of the invention provides a converter control method and system, and the method comprises the steps: determining the time corresponding to a first state as the first time when a soft start flag bit of a target converter is detected to be in the first state; based on the first voltage corresponding to the first time, the preset voltage is gradually increased to target voltage, the target voltage is in direct proportion to the corresponding target time, and the target time is longer than the first time; and controlling a target converter based on the target voltage, the target converter being a Boost converter and/or a Buck converter. According to the embodiment of the invention, the voltage ripple of the target converter can be effectively controlled. 本发明实施例提供了一种变换器的控制方法以及控制系统，其中，方法包括：检测到目标变换器的软启动标志位为第一状态时，确定第一状态对应的时间为第一时间；基于第一时间对应的第一电压，逐步增加预设电压至目标电压，所述目标电压与对应的目标时间成正比，所述目标时间大于第一时间；基于目标电压实现对目标变换器的控制，所述目标变换器为Boost变换器，和/或，Buck变换器。本发明实施例能够实现对目标变换器的电压纹波的有效控制。